[K222HQL] Screen scintillation (and pixels interferences) on one of my 2 K222HQL monitors

Hi,

I just bought two K222HQL on Amazon a week ago, and one of my monitor has a screen scintillation, and pixels interferences (not sure if that's the technical terms, I'm sorry I'm not an expert on this. Is it what some people call flickering?).

I want to know if that's normal or not.

What I can tell is that while those two monitors are the same in name, one seems definitely different.

- One has that scientillation as if it had a bad refresh rate.

- The monitor options menus differ a bit (one has a "bluelight" option. That's this one that has that, imo, horrible screen scintillation.)

- It's especially annoying on black, and dark grey areas of websites.

I switched PCs/Monitors, matched settings, graphic cards drivers (both pcs share the exact same configuration).

I don't know what to do... Is it normal? Is one a newer version of the other? Should I ask for a replacement?

I can provide Serial numbers found in the screen Options menus if it can help.

Thanks to Amazon, I have till December 12 to ask for a replacement, but getting a confirmation from the ACER community that it is a "real" problem would help. I don't want to have problems with Amazon if they think on their side that "the monitor has no problem".